Roof structure



S. RICHMOND June 24, 1930.

ROOF STRUCTURE Filed 001:.4, 1927 2 Sheets-Sheet 1- 3mm SAMUEL Rmnmmvo.

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- SAMUEL RICHMOND S. RICHMOND ROOF STRUCTURE Filed Oct, 4. 1927 June 24, 1930.

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Yemen SIT-TS Patented June 1930 SAMUEL ammonia, or BATAVIA, onto.

TUBING COMPANY, or. cmcrnnnrrr, onro, a oonronnrron on omo p nssrenort 'ro TI-IE [Env /Aims MA UFA noon .srnnornnn I I V Application filed ctober4, 1927. serial 110,223,891.

This invention relates toimprovements in 1 a roof structure and has for its prime object the production of a metal roofing unit or tile that maybe secured to the purlins of a roof structure. i v r Another object of this invention is to provide a metal. roofing unitor tile that is light in weight yet rigid enough to ;withstan 'd the required wind andlsnow load.

. Another object of this inventlon 1s to provide a metal tile that is simple of construction and can beapplied or laid by unskilled labor.

- These'and other obj cots are attained by the means described herein'and disclosed in the accompanyingdrawings; in which: .Fig. 1;is a-perspective view of the metal roofing'unit ortile. 1 .7

. Fig.2 is a fragmental plan view of a roof showing the improved tile in use; I

Fig. 3 isan'enlarged sectional view taken on line 3-3 of Fig. 2. p

1 Fig. 4: is an enlargedsectional'Viewtaken .1 Fig. 5 isan-enlargedsectional view taken on line '5.5- Of Fig.2. Y .Heretofore roofing tiles or sections have been made that were adaptedto beappliedto the purlins or rafters of a roofstructure but these tiles :were made ofclay orv cement and were veryheavy. These heavy tiles'required an. unusually strong 1 roof structure to support their weight; asqwell as the necessary wind and; snow load: Anotherobjection to the clay and cement roofingwtiles is that because of their weight they must necessarily be made in small. unitstherebyrequiring a large num-.

ber of units to cover a roof structure entailing the expenditure of'a large amount of time.

and labor. All ofthese objections havebeen overcome by the tilesor roofing units of this invention. a

11 is tapered toward the end edge 15, and the The roofing tile or unit lOisstaniped from sheet metal such as copper, zinco'r galvanized iron and comprises a pair of corrugations or+ rolls 11 and 12 formed intermediate 1ts side edges 13 and 14. The upper end of the roll lower end of the roll 12 is tapered toward'the end edge 16, as shown at 17 and 18. The up per end of the tile is provided near the edge The tapered portionl'? of the roll 11 is pro vided with a flat surface 20. upon which the tapered surfacelS of the; roll 12 "of a tile rests. The edge18 has a blank strip or tongue 21 formed intermediate itself andthe edge of roll 11 for insertion into a suitable lock with a pair-of t ransverse corrugationscarried by theadjacent tile.., The edge 14 f has formed near it a corrugation 22 having a V'-shaped cross section. The body23 of the tile, 10fi's bent upon itself between the edge 14 and the V-shaped corrugation 22 to provide a groove 24:,see Fig. 3. The groove 24 i is a lock which receives the tongue 21for be secured to the purlins 25'carriedby the principal raftersor trusses-26. In laying a roof of this invention the workmenywould begin-at theleft hand corner-and apply the first tile. Each tileis'provi'ded'with a secur After thefirst tilehas been laid suitable means', such as a wire .28 asshown in' Fig. 3,'

is employed. for securing the; edge it? of the tile to the purlins 25. The secondtile-is:n ow

I mounted inplace by inserting the to'ngue21 into the groove 24 of .thefirsttileand securingthis tile in the; manner asabove described. After the first transverserow of tilesihave been laid the second :row is started: with a half of, a tile which. causes'its lockin'g' groove ing strip 27. adjacent to the corrugation 22. I

24; toefall intermediate the ends of 'the first tile therebylbreaking or staggering the joints. The lower end of the. corrugation 22' and se-( curing strip 27' is removeavas show'n at29;in

Fig; 1, so thatthe tiles of. the secondrow will receive the roll l2of the transverse row below; 'this is clearly illustrated in Fig.2.:v 1:;

. These tilesc-arem'ade approximately two feetgWide and four feetrlong and may be applied'to any roof having end supports-not" greaterfthan fourfectziapart'as shownin Fig. Y

111 other words should thepurlins orLraftersibe spacedrfour feet apart it would be.

suficient support fo-rza roofing unit 0min of this invention. ;It has been found that No.1'22 gauge galvanized steel is 'sufiiciently strong for. all conditions and weighs approxinext'tile.

mately two pounds per square foot as compared with concrete, cement or clay tiles which would weigh approximately twenty pounds per square foot. It is therefore readily evident that a more economical roof has been produced that will answer the purpose of'the expensive roofs used heretofore. It should also be noted that because of the light weight and simplicity of construction of these {tiles they can be economically l-aid by unskilled labor and in a minimum of time. Because of the large size of the tiles a relatively small number of tiles are necessary to completely cover a roof. The entire lower edges 16 of the tiles are bent downwardly as shown atl30, to contact the tiles next below and to insurerain and the like descending onto the The-corrugations 19 formed transversely of the tiles lOfoi-m a dam, which preventswindand snow from being blown upwardlyunder thetiles, thereby insuring a waterproof roof. Anyoth'er means than the wires'28 may be used forfastening the tiles tothepurlins such as bolts and nuts, lag screws, expansion screws or thelike, or a tongue or look may be formed upon the tile itself and bent or fastened about the purlins for securing the tile inposition.

vItfis readily evidentthat-th'es'e tiles may also beapplie'd over. the existing old surface of 'a roof when it is desired to renovate or resurface said roof.

lVh-at is claimed is a 1. A relatively large, light wei-ght,c-metal roofingzunit adapted to have its end edges secured to thepurlins of a roof structure comprising a pair .of longitudinal rolls formed inthe unit intermediate itsside edges, one end :of each roll-being tapered toward its adjacent end edge, transverse corrugations formed in the unit at one end thereof forming a dam when the units are mounted upon one .another, and complementary locking means formed along theopposite side edges. 2. A metal roofing unit adapted to haveits end edges secured to the purlins :of'a roof structureand. each unit adapted to-overlap another unit comprising a pair of longitudinal rolls formed'interm'ediatethe side edges of the unit, one end-of each roll being tapered toward its adjacent end edge, a tran'sverse corrugation formed inthe unit at one end thereof forming adam when the units are laidin =.place,a locking. tongue formed along one rugation formed in the unit adjacent one end thereof, a locking tongue formed along one side edge of the unit adjacent one roll, a locking groove formed along the other side edge adapted to receive the locking tongue, a fastening strip adjacent the locking groove, and a depending. transverse flange along one end edge of the unit adapted to lie on the upper surface ofthe underlying unit. x

t. Asheet metal roofing -plate having one longitudinal edge shaped to interlock into a locking channel in the adjacent plate and the other longitudinal edge being provided with an anchoring flange, a-locking channel being formed adjacent to this latter edge, transverse corrugations being formed in. the upper end of the plate extending from the lockingcham nel to the lock. engaging flangelatuthe other edge, said sheet being provided additionally with a pair of upstanding open longitudinal rolls, one. roll extending from the: lower edge of the plate toga point near the'upper edge where it is tapered off, and the'other .roll extending from the top edge of the plate to a point near the loweredge of the plate, this latter end of the roll being tapered off.

5. A sheet metal roof structure comprising a plurality of similar roofing plates arranged for watertight interlocking one upon another along their longitudinal edges, apair of longitudinal rollsextendingfrom topto bottom-edge of each plate, oneroll being disposed centrally of. the plate and taperedat an end to the bottomiof said plate, theother roll being disposed adjacent a lateral edge of the plate and tapered atanJend to the top of the plate, transverse corrugations parallel to the top of the plate andextending across the rolls, and a down-turned bottom "edge-on the plate extending 'across;the rolls,-said edge being adapted to overlap and abut a corrugation on thextop'of a plate next below to provide a uniform: seal between such plates, the a'djacentitaperediends 'ofthe'rolls' :on such plates being received one in the 'oth'er to effect staggering ofthe interlocked longitudinal edges in successive 'rowslof plates. In testimony whereof, I have hereunto subscribed my name thislG-th day .of September,

. SAMUEL-RIGHMOND.

side edger'of the unit ,iand .a complementary v lockinggroove formed along the opposite side edge adapted to receive the tongue of the ad; jacent unit. a

3L A metal roofing unit adapted to have its end edges secured to the purlins of a roof structure, and each unit adapted to overlap another unit comprising-a pair of longitudinal rolls intermediatevthe side -edges of a' unit, one end of each .ro ll'beingtapered toward 1tsadjacent end. edge, a transverse cor- 

